25332539 has 2 divisors, whose sum is σ = 25332540. Its totient is φ = 25332538.

The previous prime is 25332511. The next prime is 25332557. The reversal of 25332539 is 93523352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25332539 is a prime.

It is not a weakly prime, because it can be changed into another prime (25332509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12666269 + 12666270.

It is an arithmetic number, because the mean of its divisors is an integer number (12666270).

Almost surely, 2^25332539 is an apocalyptic number.

25332539 is a deficient number, since it is larger than the sum of its proper divisors (1).

25332539 is an equidigital number, since it uses as much as digits as its factorization.

25332539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24300, while the sum is 32.

The square root of 25332539 is about 5033.1440472134. The cubic root of 25332539 is about 293.6925341639.

The spelling of 25332539 in words is "twenty-five million, three hundred thirty-two thousand, five hundred thirty-nine".